1 /* vi: set noexpandtab sw=4 sts=4: */
2 /* opkg_download.c - the opkg package management system
6 Copyright (C) 2001 University of Southern California
7 Copyright (C) 2008 OpenMoko Inc
9 This program is free software; you can redistribute it and/or
10 modify it under the terms of the GNU General Public License as
11 published by the Free Software Foundation; either version 2, or (at
12 your option) any later version.
14 This program is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
27 #include "opkg_download.h"
28 #include "opkg_message.h"
30 #include "sprintf_alloc.h"
32 #include "file_util.h"
33 #include "opkg_defines.h"
34 #include "libbb/libbb.h"
37 #include <curl/curl.h>
40 #if defined(HAVE_SSLCURL) || defined(HAVE_OPENSSL)
41 #include <openssl/conf.h>
42 #include <openssl/evp.h>
43 #include <openssl/err.h>
44 #include <openssl/ssl.h>
47 #if defined(HAVE_GPGME)
49 #elif defined(HAVE_OPENSSL)
50 #include <openssl/bio.h>
51 #include <openssl/objects.h>
52 #include <openssl/x509.h>
53 #include <openssl/pem.h>
54 #include <openssl/hmac.h>
57 #ifdef HAVE_PATHFINDER
58 #include "opkg_pathfinder.h"
61 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
62 static void openssl_init(void);
66 static X509_STORE *setup_verify(char *CAfile, char *CApath);
71 * Make curl an instance variable so we don't have to instanciate it
74 static CURL *curl = NULL;
75 static CURL *opkg_curl_init(curl_progress_func cb, void *data);
79 str_starts_with(const char *str, const char *prefix)
81 return (strncmp(str, prefix, strlen(prefix)) == 0);
85 opkg_download(const char *src, const char *dest_file_name,
86 curl_progress_func cb, void *data, const short hide_error)
90 char *src_basec = xstrdup(src);
91 char *src_base = basename(src_basec);
92 char *tmp_file_location;
94 opkg_msg(NOTICE,"Downloading %s.\n", src);
96 if (str_starts_with(src, "file:")) {
97 const char *file_src = src + 5;
98 opkg_msg(INFO, "Copying %s to %s...", file_src, dest_file_name);
99 err = file_copy(file_src, dest_file_name);
100 opkg_msg(INFO, "Done.\n");
105 sprintf_alloc(&tmp_file_location, "%s/%s", conf->tmp_dir, src_base);
107 err = unlink(tmp_file_location);
108 if (err && errno != ENOENT) {
109 opkg_perror(ERROR, "Failed to unlink %s", tmp_file_location);
110 free(tmp_file_location);
114 if (conf->http_proxy) {
115 opkg_msg(DEBUG, "Setting environment variable: http_proxy = %s.\n",
117 setenv("http_proxy", conf->http_proxy, 1);
119 if (conf->ftp_proxy) {
120 opkg_msg(DEBUG, "Setting environment variable: ftp_proxy = %s.\n",
122 setenv("ftp_proxy", conf->ftp_proxy, 1);
124 if (conf->no_proxy) {
125 opkg_msg(DEBUG,"Setting environment variable: no_proxy = %s.\n",
127 setenv("no_proxy", conf->no_proxy, 1);
132 FILE * file = fopen (tmp_file_location, "w");
134 curl = opkg_curl_init (cb, data);
137 curl_easy_setopt (curl, CURLOPT_URL, src);
138 curl_easy_setopt (curl, CURLOPT_WRITEDATA, file);
140 res = curl_easy_perform (curl);
145 curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &error_code);
146 opkg_msg(hide_error?DEBUG2:ERROR, "Failed to download %s: %s.\n",
147 src, curl_easy_strerror(res));
148 free(tmp_file_location);
155 free(tmp_file_location);
166 if (conf->http_proxy || conf->ftp_proxy) {
171 argv[i++] = tmp_file_location;
177 opkg_msg(ERROR, "Failed to download %s, wget returned %d.\n", src, res);
178 free(tmp_file_location);
184 err = file_move(tmp_file_location, dest_file_name);
186 free(tmp_file_location);
192 opkg_download_cache(const char *src, const char *dest_file_name,
193 curl_progress_func cb, void *data)
195 char *cache_name = xstrdup(src);
196 char *cache_location, *p;
199 if (!conf->cache || str_starts_with(src, "file:")) {
200 err = opkg_download(src, dest_file_name, cb, data, 0);
204 if(!file_is_dir(conf->cache)){
205 opkg_msg(ERROR, "%s is not a directory.\n",
211 for (p = cache_name; *p; p++)
213 *p = ','; /* looks nicer than | or # */
215 sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
216 if (file_exists(cache_location))
217 opkg_msg(NOTICE, "Copying %s.\n", cache_location);
219 /* cache file with funky name not found, try simple name */
221 char *filename = strrchr(dest_file_name,'/');
223 cache_name = xstrdup(filename+1); // strip leading '/'
225 cache_name = xstrdup(dest_file_name);
226 free(cache_location);
227 sprintf_alloc(&cache_location, "%s/%s", conf->cache, cache_name);
228 if (file_exists(cache_location))
229 opkg_msg(NOTICE, "Copying %s.\n", cache_location);
231 err = opkg_download(src, cache_location, cb, data, 0);
233 (void) unlink(cache_location);
239 err = file_copy(cache_location, dest_file_name);
243 free(cache_location);
250 opkg_download_pkg(pkg_t *pkg, const char *dir)
254 char *stripped_filename;
256 if (pkg->src == NULL) {
257 opkg_msg(ERROR, "Package %s is not available from any configured src.\n",
261 if (pkg->filename == NULL) {
262 opkg_msg(ERROR, "Package %s does not have a valid filename field.\n",
267 sprintf_alloc(&url, "%s/%s", pkg->src->value, pkg->filename);
269 /* The pkg->filename might be something like
270 "../../foo.opk". While this is correct, and exactly what we
271 want to use to construct url above, here we actually need to
272 use just the filename part, without any directory. */
274 stripped_filename = strrchr(pkg->filename, '/');
275 if ( ! stripped_filename )
276 stripped_filename = pkg->filename;
278 sprintf_alloc(&pkg->local_filename, "%s/%s", dir, stripped_filename);
280 err = opkg_download_cache(url, pkg->local_filename, NULL, NULL);
287 * Downloads file from url, installs in package database, return package name.
290 opkg_prepare_url_for_install(const char *url, char **namep)
297 if (str_starts_with(url, "http://")
298 || str_starts_with(url, "ftp://")) {
300 char *file_basec = xstrdup(url);
301 char *file_base = basename(file_basec);
303 sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
304 err = opkg_download(url, tmp_file, NULL, NULL, 0);
308 err = pkg_init_from_file(pkg, tmp_file);
315 } else if (strcmp(&url[strlen(url) - 4], OPKG_PKG_EXTENSION) == 0
316 || strcmp(&url[strlen(url) - 4], IPKG_PKG_EXTENSION) == 0
317 || strcmp(&url[strlen(url) - 4], DPKG_PKG_EXTENSION) == 0) {
319 err = pkg_init_from_file(pkg, url);
322 opkg_msg(DEBUG2, "Package %s provided by hand (%s).\n",
323 pkg->name, pkg->local_filename);
324 pkg->provided_by_hand = 1;
332 pkg->dest = conf->default_dest;
333 pkg->state_want = SW_INSTALL;
334 pkg->state_flag |= SF_PREFER;
335 hash_insert_pkg(pkg, 1);
344 opkg_verify_file (char *text_file, char *sig_file)
346 #if defined HAVE_USIGN
350 if (conf->check_signature == 0 )
358 execl("/usr/sbin/opkg-key", "opkg-key", "verify", sig_file, text_file, NULL);
362 waitpid(pid, &status, 0);
363 if (!WIFEXITED(status) || WEXITSTATUS(status))
367 #elif defined HAVE_GPGME
368 if (conf->check_signature == 0 )
372 gpgme_data_t sig, text, key;
374 gpgme_verify_result_t result;
376 char *trusted_path = NULL;
378 gpgme_check_version (NULL);
380 err = gpgme_new (&ctx);
385 sprintf_alloc(&trusted_path, "%s/%s", conf->offline_root, "/etc/opkg/trusted.gpg");
386 err = gpgme_data_new_from_file (&key, trusted_path, 1);
392 err = gpgme_op_import (ctx, key);
395 gpgme_data_release (key);
398 gpgme_data_release (key);
400 err = gpgme_data_new_from_file (&sig, sig_file, 1);
407 err = gpgme_data_new_from_file (&text, text_file, 1);
410 gpgme_data_release (sig);
415 err = gpgme_op_verify (ctx, sig, text, NULL);
417 result = gpgme_op_verify_result (ctx);
421 /* see if any of the signitures matched */
422 s = result->signatures;
425 status = gpg_err_code (s->status);
426 if (status == GPG_ERR_NO_ERROR)
432 gpgme_data_release (sig);
433 gpgme_data_release (text);
437 #elif defined HAVE_OPENSSL
438 X509_STORE *store = NULL;
440 BIO *in = NULL, *indata = NULL;
442 // Sig check failed by default !
447 // Set-up the key store
448 if(!(store = setup_verify(conf->signature_ca_file, conf->signature_ca_path))){
449 opkg_msg(ERROR, "Can't open CA certificates.\n");
450 goto verify_file_end;
453 // Open a BIO to read the sig file
454 if (!(in = BIO_new_file(sig_file, "rb"))){
455 opkg_msg(ERROR, "Can't open signature file %s.\n", sig_file);
456 goto verify_file_end;
459 // Read the PKCS7 block contained in the sig file
460 p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
462 opkg_msg(ERROR, "Can't read signature file %s (Corrupted ?).\n",
464 goto verify_file_end;
466 #if defined(HAVE_PATHFINDER)
467 if(conf->check_x509_path){
468 if(!pkcs7_pathfinder_verify_signers(p7)){
469 opkg_msg(ERROR, "pkcs7_pathfinder_verify_signers: "
470 "Path verification failed.\n");
471 goto verify_file_end;
476 // Open the Package file to authenticate
477 if (!(indata = BIO_new_file(text_file, "rb"))){
478 opkg_msg(ERROR, "Can't open file %s.\n", text_file);
479 goto verify_file_end;
482 // Let's verify the autenticity !
483 if (PKCS7_verify(p7, NULL, store, indata, NULL, PKCS7_BINARY) != 1){
485 opkg_msg(ERROR, "Verification failure.\n");
495 X509_STORE_free(store);
499 /* mute `unused variable' warnings. */
508 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
509 static void openssl_init(void){
513 OPENSSL_config(NULL);
514 OpenSSL_add_all_algorithms();
515 ERR_load_crypto_strings();
523 #if defined HAVE_OPENSSL
525 setup_verify(char *CAfile, char *CApath)
527 X509_STORE *store = NULL;
528 X509_LOOKUP *lookup = NULL;
530 if(!(store = X509_STORE_new())){
531 // Something bad is happening...
535 // adds the X509 file lookup method
536 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_file());
541 // Autenticating against one CA file
543 if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) {
544 // Invalid CA => Bye bye
545 opkg_msg(ERROR, "Error loading file %s.\n", CAfile);
549 X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT);
552 // Now look into CApath directory if supplied
553 lookup = X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir());
559 if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) {
560 opkg_msg(ERROR, "Error loading directory %s.\n", CApath);
564 X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT);
573 X509_STORE_free(store);
581 void opkg_curl_cleanup(void){
583 curl_easy_cleanup (curl);
589 opkg_curl_init(curl_progress_func cb, void *data)
593 curl = curl_easy_init();
598 if (conf->ssl_engine) {
600 /* use crypto engine */
601 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE, conf->ssl_engine) != CURLE_OK){
602 opkg_msg(ERROR, "Can't set crypto engine '%s'.\n",
608 /* set the crypto engine as default */
609 if (curl_easy_setopt(curl, CURLOPT_SSLENGINE_DEFAULT, 1L) != CURLE_OK){
610 opkg_msg(ERROR, "Can't set crypto engine '%s' as default.\n",
618 /* cert & key can only be in PEM case in the same file */
619 if(conf->ssl_key_passwd){
620 if (curl_easy_setopt(curl, CURLOPT_SSLKEYPASSWD, conf->ssl_key_passwd) != CURLE_OK)
622 opkg_msg(DEBUG, "Failed to set key password.\n");
626 /* sets the client certificate and its type */
627 if(conf->ssl_cert_type){
628 if (curl_easy_setopt(curl, CURLOPT_SSLCERTTYPE, conf->ssl_cert_type) != CURLE_OK)
630 opkg_msg(DEBUG, "Failed to set certificate format.\n");
633 /* SSL cert name isn't mandatory */
635 curl_easy_setopt(curl, CURLOPT_SSLCERT, conf->ssl_cert);
638 /* sets the client key and its type */
639 if(conf->ssl_key_type){
640 if (curl_easy_setopt(curl, CURLOPT_SSLKEYTYPE, conf->ssl_key_type) != CURLE_OK)
642 opkg_msg(DEBUG, "Failed to set key format.\n");
646 if (curl_easy_setopt(curl, CURLOPT_SSLKEY, conf->ssl_key) != CURLE_OK)
648 opkg_msg(DEBUG, "Failed to set key.\n");
652 /* Should we verify the peer certificate ? */
653 if(conf->ssl_dont_verify_peer){
655 * CURLOPT_SSL_VERIFYPEER default is nonzero (curl => 7.10)
657 curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
659 #ifdef HAVE_PATHFINDER
660 if(conf->check_x509_path){
661 if (curl_easy_setopt(curl, CURLOPT_SSL_CTX_FUNCTION, curl_ssl_ctx_function) != CURLE_OK){
662 opkg_msg(DEBUG, "Failed to set ssl path verification callback.\n");
664 curl_easy_setopt(curl, CURLOPT_SSL_CTX_DATA, NULL);
670 /* certification authority file and/or path */
671 if(conf->ssl_ca_file){
672 curl_easy_setopt(curl, CURLOPT_CAINFO, conf->ssl_ca_file);
674 if(conf->ssl_ca_path){
675 curl_easy_setopt(curl, CURLOPT_CAPATH, conf->ssl_ca_path);
679 curl_easy_setopt (curl, CURLOPT_FOLLOWLOCATION, 1);
680 curl_easy_setopt (curl, CURLOPT_FAILONERROR, 1);
681 if (conf->http_proxy || conf->ftp_proxy)
684 sprintf_alloc (&userpwd, "%s:%s", conf->proxy_user,
686 curl_easy_setopt(curl, CURLOPT_PROXYUSERPWD, userpwd);
691 curl_easy_setopt (curl, CURLOPT_NOPROGRESS, (cb == NULL));
694 curl_easy_setopt (curl, CURLOPT_PROGRESSDATA, data);
695 curl_easy_setopt (curl, CURLOPT_PROGRESSFUNCTION, cb);